EoW March 2009

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EuroWire – March 2009 42
english technology news
Maschinenfabrik Niehoff has announced the addition of two new
double twist buncher sizes to its buncher family product line: the
D401 and the D1001.
The product line now starts with type D401 designed for strands
of 0.013 to 2.5mm² with continuous lay length and a maximum
number of 9,000 twists per minute. The D401 enables the
production of strands with 7 x 0.05mm construction as smallest
strand variant, while the second type D1001 is the new powerful
double twist-bunching machine. This machine completes the
product line and is designed for strands of up to 50mm² with a
lay length of 300mm maximum and a maximum rotational speed
of 3,200 twists per minute. It is optimally suitable for large wire
rope lay strands and battery cables of copper and aluminium.
Both new bunching machines feature the technical advantages
of the entire product line. Compared to conventional bunching
machines, energy consumption and noise emission are reduced
due to the one-bow design of the machines. State-of-the-art
three-phase drive technology and contactless machine data
transfer reduce maintenance to a minimum.
NBAT – Niehoff Bunching Automatic Traverse – automatically
detects spool flanges and controls the traverse width of empty
and full spools using optoelectronic sensors, without machine
operator intervention. NBAT is offered as a standard on the D401
buncher and as an option on the remaining buncher sizes.
All production parameters are set on the HMI touch screen, in the
operator’s native language, and are clearly displayed together
with all service messages.
Maschinenfabrik Niehoff GmbH – Germany
Fax: +49 9122 977 155
Email:
Website:
Expanded bunching
machine portfolio
Niehoff's D1001 type double twist buncher ▲ ▲
Roland Electronic GmbH has introduced
a newly designed digital UFD40 system
as a successor to its proven analogue
UFD detector. The system has been
designed to detect faults, butt welds
and mechanical connections in wires,
cables and small tubing made of metallic
materials such as steel, stainless steel,
copper, brass and aluminium.
The UFD40 is based on the eddy current
measurement principle; the material
to be monitored passes through the
orifice of an encircling coil sensor.
Roland Electronic offers sensors suited
for materials ranging in diameter from
1mm to 90mm. The UFD40 has features
typically available in classic eddy current
fault detection systems designed for
automated production processes. These
include adjustable frequencies, high and
low pass filters as well as y-component
and vector analysis. This makes the
system suitable to monitor many
different discontinuities with one type of
hardware.
UFD40 is of a modular design and offers
several operating modes. The complete
electronic circuitry for two independent
measuring channels is housed in one
IP65 module enclosure. Each channel
automatically executes the measurement
functions.
The RS232 interface provides the
connection to the host PC, which
serves as the operating interface for the
system and provides visualisation of all
measurement values. A parallel interface
and fieldbus interface are available for
communication with the production
equipment PLC.
Roland Electronic GmbH – Germany
Fax: +49 7236 9392 33
Email:
Website:
Universal fault detector